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Athens eSIM

100 Greece plans · from $2.23

Athens is usually the start of a longer trip — a couple of days of ruins before a ferry to the islands. A travel eSIM covers both halves: the city, and the Piraeus ferry booking you will inevitably need to change at short notice.

Landing at Eleftherios Venizelos (ATH)

Metro line 3 runs from the airport to Syntagma in about 40 minutes and is far cheaper than a taxi. The airport metro ticket is a separate, higher fare — check it in the app before you queue at the machine.

eSIM plans that cover Athens

Athens is covered by every Greece plan below — there is no separate city-only eSIM to buy.

Choose a data plan

1 GB

7 days· 0.6 GB per $1

$2.23

★ BEST VALUE

Unlimited

1 days· ∞ GB per $1

$2.63

2 GB

15 days· 0.7 GB per $1

$3.71

3 GB

30 days· 0.8 GB per $1

$4.65

Unlimited

3 days· ∞ GB per $1

$5.45

5 GB

30 days· 0.9 GB per $1

$6.38

Unlimited

5 days· ∞ GB per $1

$8.52

10 GB

30 days· 1.2 GB per $1

$10.03

Unlimited

7 days· ∞ GB per $1

$11.64

Unlimited

10 days· ∞ GB per $1

$16.25

20 GB

30 days· 1.4 GB per $1

$16.46

Unlimited

15 days· ∞ GB per $1

$24.06

Which networks you'll be on in Athens

Siima eSIMs for Greece ride Cosmote and Vodafone Greece. Cosmote has the strongest island and ferry-route coverage, which matters more than the Athens difference if you are island-hopping afterwards.

Coverage around Athens

Metro and tram

Coverage across all three metro lines including tunnel sections. The tram down to the Athens Riviera at Glyfada holds signal the whole way.

Acropolis and Plaka

Strong signal on the Acropolis hill itself — one of the better places in the city for it, being high and open. Plaka's narrow lanes cause brief drops between buildings.

Piraeus and the ferries

The port is well covered, and ferries hold signal for the first stretch out of Piraeus. Mid-Aegean crossings lose it for long periods — download boarding passes and maps before you sail.

Delphi and Cape Sounion

The two classic day trips are covered at the sites themselves. The coastal road to Sounion keeps signal throughout; the mountain road to Delphi dips in the passes.

How much data you need

Two or three days in Athens is about 2 GB. If you are continuing to the islands on the same eSIM, size the plan for the whole trip — a 10 GB plan for two weeks is the usual sweet spot.

Work it out with our data usage calculator →

Frequently asked questions

Does a Greece eSIM work on Santorini, Mykonos and Crete?
Yes. Siima plans for Greece are country-wide and cover the islands as well as the mainland. Coverage is good in the island towns and ports; remote beaches and the interiors of the smaller Cyclades are thinner.
Will I have signal on the ferry from Piraeus?
For the first part of the crossing, yes, and again as you approach each island. The open-water stretches in between routinely have no coverage — plan for it by downloading anything you need before departure.
How do I set up an eSIM before arriving in Athens?
Install it at home while you still have Wi-Fi: open Settings → Cellular → Add eSIM and scan the QR code from your Siima confirmation email. Leave the line switched off until you land — the plan starts counting from first use in Greece, not from purchase.
How much data do I need for a trip to Athens?
Two or three days in Athens is about 2 GB. If you are continuing to the islands on the same eSIM, size the plan for the whole trip — a 10 GB plan for two weeks is the usual sweet spot.
Is an eSIM cheaper than roaming in Athens?
Almost always. Daily roaming passes from most home carriers run $10–15 per day, while Siima plans covering Athens start from $2.23 for the whole trip. You also avoid per-megabyte charges if you exceed a roaming pass allowance.
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